Loose leaf binder



Feb. l5, i933., P. O, UNGER ZSSB LOOSE LEAF BINDER Filed oct. 14, 1935 IllllllllllIIIIIIIIIIllllllll|IIIIIIHIIIIllllIIIIIIIIIIIIIIIIIIIIII illl|||ll|||l|l|||||||l|||||||l||||||lllllllllllllllllilll 1m uw 'Y E',

y INVENTOR PAUL O UNGER ATTORNEY Patented Feb. 15, 1938 UNITE STTS Z,1il8,153

@TENT FFIQE.

son-Jones cmpany,

Chicago, Ill., a corporation of Massachusetts Application (ctober 14, 1935, Serial No. 44,830

7 Claims.

This invention relates to loose leaf binders particularly adapted for use in connection with machine posting. In machine posting devices of the front feed type it is very desirable to use sheets having an unbroken top edge. This invention is particularly concerned with means for retaining sheets of this type in a binder in such a manner that the sheets may be handled very rapidly during the posting operations.

It is an object cf this invention to provide a sheet retaining post that may be readily inserted into a loose leaf binder to retain the sheets therein and may be readily removed so as not to impede the rapid removal and replacement of the sheets during the posting operations. It is a iurther ob-ject of this invention to provide simple and eilcient means in the binder to securely retain the post in sheet retaining position and yet permit easy removal therefrom. Other objects of this invention will become apparent upon reading the following description taken in conjunction with the accompanying drawing, in which Figure 1 is a cross sectional View taken substantially on the line -I of Figure 2 through the back of a binder embodying this invention;

Figure 2 is a fragmentary top plan View of the binder with parts broken away to facilitate illustration of the structure;

Figure 3 is a fragmentary cross sectional View showing the means for removing the sheet retaining post;

Figure 4 is a detail perspective view of the sheet retaining post; and

Figure 5 is a fragmentary perspective View of the means for holding the she-et retaining post in the binder.

In the drawing, the reference numerals 2 and 3 indicate a pair of clamping or back members which are movable transversely relative to each other. The back members 2 and 3 each are provided with a plate member, 2 and 3 respectively, which may be integral therewith, and which extend at an angle to the back members. Cover members 4 are hinged to the plate members 2, 3', as indicated at 5. The ends of the back memv ber 2 are bent over, as indicated at 6, to form guide channels in which the ends of the back member 3 are moved. Interengaging tongues 'I and 8 on the bent over portion 6 and the back 50 member 3, respectively, prevent separation of the back members.

A channel shaped member 9 is rigidly secured to the plate member 3 to form a tubular compartment I0. A channel shaped member Il is rigidly secured to the plate member 2 to form a (Cl. 12S-13) tubular compartment l2, The compartments I0 and I2 extend the length of the binder back and are closed at their ends by means of end caps I 3 of felt, ber, or any other material adapted to prevent the binder from marring any finished surface on which it may be handled. The back members 2 and 3 are connected by a pair of posts Id each of which consists oi a tubular section I5 rigidly secured to the plate member 2', as shown at i6, and a second tubular section I1 secured to the plate member 3', as shown at I8, and adapted to telescope into the section I5. A coiled spring i9 is contained within the telescopic post I4, and normally tends to expand to separate the back members 2 and 3.

The back members 2 and 3 are also connected by a pair of telescopic` locking posts 2S. Each locking post 2i] consists of a tubular section 2| rigidly secured to the plate member 3', as shown at 22, and a solid section 23 secured to the plate member 2 by means of a screw 2d and adapted to telescope into the tubular section 2|. Each section 23 is provided near its unsecured end with a conical portion 25 providing a space 26 in which a plurality of gravity operated balls 21 is u contained. The space 26 is closed at one end by the body portion of the section 23 and at the other end by a iiange 28 tting snugly in the section 2l. The unsecured end of the section 2| is provided with an inturned ange 29 adapted to engage the flange 28 to prevent separation of the sections 2l and 23. When the binder is in the position of Figure l, any attempt to move the back members apart will wedge the balls 2l into the small end of the space 26 and thereby prevent such movement. When the binder is reversed the balls 21 roll to the large end ci the space 26 and the back members 2 and 3 may be moved apart until the tongues 'I and 8 interengage. l

The posts I4 and 20 are arranged adjacent the ends of the binder, as indicated in Figure 2, so as to permit the insertion of sheets 30 therebetween. The posts HI and 2li form a guide means for aligning the sheets 3@ as they are inserted in the binder. The sheets 3G are provided with one or more apertures 3i through which sheet retaining posts 32 may be inserted.

Each sheet retaining post 32 consists of a solid section 33 adapted to telescope into a tubular section 34. A coiled spring 35 positioned within the tubular section exerts a constant force tending to move the sections 33 and 3B out of telescoping relationship. A flange 36 rigidly secured to the section 33 and a restricted outlet S'I on the section 34 interengage to prevent complete separation of the sections of the sheet retaining post 32. The section 36% is provided with an enlarged head 38 and has a threaded aperture 3s therein. A key il having a threaded end lil is adapted to be screwed into the aperture Se to rotate the section 34 and to press it inwardly against the action of the spring 35. The section 34 is also provided with a pin l2 having a pair of laterally projecting ends adjacent the headed end 38.

The plate member 2 and the channel shaped member Il are apertured in registration with each other, as indicated at 43 and 4e, respectively, to allow insertion of the sheet retaining posts 32. rlTne apertures i3 are just large enough to permit insertion of the tubular portions Se, but the apertures 4i are large enough to receive the headed ends 38 oi the posts. The plate member 3 is apertured and embossed, as indicated at 45, to receive the tip end of the section but the aperture is not large enough to allow the section 33 to pass therethrough.

The plate member 2 has secured thereto a plurality of members 46 each of which is apertured, as indicated at lil, in registration with the apertures d3. The member @t is embossed to provide a circular iiange QS surrounding the aperture lll. The flange Q8 provides a space lig between the plates 2 and #it adjacent the apertures 43 and ill. The space #i9 is large enough to receive the pro-jecting ends of pin 152. The flange 48 is provided with a pair ci recesses 5S through which the pin i2 may be inserted into the space 9. After the pin G2 has passed through the recesses 5d ak slight rotation of the section 34 will bring the pin il?. under the flange 48 whereby the sheet retaining post may be heid in position.

The ange i8 is provided with a pair of embossments 5i. When the section 3@ is rotated a suicient distance to bring the pin i2 into alignment with the embossments 5l, the spring 35 urges the pin d2 into the embossments. The embossments are deep enough so that the key @E may be easily unscrewed from the aperture 32 without moving the pin 42 out of the embossments. When it is desired to remove the posts 32 from the binder the key li@ is screwed into the: aperture 39 all the and then continued rotation in the same direction will force the pin out of the embossments 5i and into alignment with the recesses 553 at which time the spring 35 will force the post 32 out of its secured position.

Although I have shown a binder equipped with two sheet retaining posts it will be obvious that the number may be varied in accordance with the size of the sheets and the particular desires of' the user. Inasmuch as many other detaiis may be modiiied or changed without departing from the spirit or scope of my invention it will be understood that the description thereof is intended to be illustrative, rather than restrictive. Accordingly, I do not desire to be restricted to the exact construction described, except as limited by the appended claims.

I claim:

I. In a loose leaf binder, an apertured plate member, a flanged member secured to said plate member with its flange surrounding the aperture of said plate member and spaced a slight distance therefrom, and a headed post provided with a projection adjacent the headed end thereof, said post being insertable through said aperture to a point where said headed end contacts against said flange, said flange being notched to permit passage of said projection.

2. In a loose leaf binder, a plate member, a flanged member secured to said plate member with its iiange spaced therefrom, a post comprising a pair of spring pressed telescoping sections, a projection on one of said sections adjacent one end thereof, said projection being adapted to be received between said plate member and said iiange to hold said post in said binder, and means on said ange adapted to cooperate with said projection to prevent accidental displacement of said post.

3. In a loose leaf binder, a plate member, a flanged member secured to said plate member with its flange spaced therefrom, and a headed post provided with a projection below the head of said post, said projection being adapted to be positioned between said plate member and said flange.

el. In a loose leaf binder, a plate member, a iianged member secured to said plate member with its ange spaced therefrom, a post comprising a pair of spring pressed telescoping sections, and a projection on one of said sections, said ilange being notched to permit positioning of said projection between said flange and said plate member.

5. In a loose leaf binder, a plate member, a flanged member secured to said plate member with its flange spaced therefrom, a post, a projection adjacent one end of said post, said flange being notched to permit positioning of said projection between said flange and said plate member, said ange having an embossment spaced from said notch, means to rotate said post to position said projection into registration with said embossment, and means to force said projection into said embossment to retain said post in said binder against accidental displacement.

6. In a loose leaf binder, a plate member, a flange spaced from said p-late member, a post, a projection adjacent one end of said post, said iiange being notched to permit positioning of said projection between said harige and said plate member, said flange: having an embossment spaced from sai-d notch, means to rotate said post to position said projection into registration with said embossment, and a spring to force said projection into said embossment to retain said post in said binder against accidental displacement, said means being adapted to move said projection out of said embossment against the action of said spring to remove said post from the binder.

'1. In a loose leaf binder, a pair of parallel apertured members spaced apart with their apertures in registration, a post insertable through said apertures, a projection adjacent one end of said post, one of said members being provided with a notch, said projection being insertable through said notch to position said projection between said members, an embossment on one of said members out of registration with said notch, means to rotate said post in one direction to position said projection into registration with said embossment, and means to force said projection into said embossment to retain said post in the binder against accidental displacement, said rst mentioned means being operable to rotate said post farther in the same direction to position said projection into registration with said notch to permit removal of said post from the binder.

PAUL O. UNGER. 

